User Guide

Garmin G1000 Pilot’s Training Guide – Instructor’s Reference
190-00368-04 Rev. A
20
GROUND LESSONS
6b. What are the next actions that should be taken concerning the completion of the flight? Note that, depending on the
circumstances, the following action items may occur in a different order.
1. Activate the autopilot if it is not already activated; set it to Roll and Pitch mode.
2. Notify ARTCC both of the failure and of the need to deviate. Do not hesitate to ask for no-gyro turns if
the aircraft must be hand-flown.
3. Based on the information provided by ARTCC, set up a direct-to GPS navigation to the nearest VFR airport
or to a nearby airport with the next best conditions.
4. Check the DTK and TRK datafields at the top of the PFD to help determine whether the aircraft is in
straight flight or in a bank angle and use the magnetic (“whiskey”) compass to perform cross-checks
against the DTK and TRK data. Note that this is the type of situation in which having an active GPS NAV
as an additional cross-check tool is important.
5. Use the map overlay to verify heading changes.
6. Optimally, set the autopilot to fly the approach.
6c. When the AHRS fails, what is the other piece of information that is lost besides attitude?
When the AHRS has failed, so has the magnetometer, hence magnetic heading indications are no longer dis-
played on the HSI and a red X appears over the Heading window. Therefore, use the DTK and TRK numbers
from the GPS for direction to the runway, and perform cross-checks against the magnetic (“whiskey”) compass
in the aircraft.